18 replies to this topic

[ntsqd]

I suspect that the E rated suggestion started out for the drivers of Rangers and Tacomas and has since permeated the thinking for every truck.

 

Our CTD is on D rated tires. I run the rears at their max cold pressure (50 psi) when on the pavement. The fronts will vary depending on my attention span. Usually also at 50, but not always. On rough pavement 40-45 works better. In the dirt and when called for I take them all down to 40 psi. I've yet to need to go lower.

[pvstoy]

Your truck had 2 options I bet for rim sizes 20" and 18".  For most off road and airing down having the extra sidewall the 18" will give you would be better.  Along with  the extra height of the sidewall provides more flex for more absorbing of the road surface.  Can air down a 18" trickier on 20" rims as less sidewall height.

 

18" should be a fit for over the brakes.  Keeping them around the same diameter to a couple of percentages maintains the computer acceptance.  Some tire shops will not put on tires that are 4 percent or more in a change from stock.  

 

So for me I would consider 18" rims with similar sized stock tires in "E" rated for added weigh carrying capacity and a tougher sidewall for airing down.  

[flyoversea]

Your truck had 2 options I bet for rim sizes 20" and 18". For most off road and airing down having the extra sidewall the 18" will give you would be better. Along with the extra height of the sidewall provides more flex for more absorbing of the road surface. Can air down a 18" trickier on 20" rims as less sidewall height.

18" should be a fit for over the brakes. Keeping them around the same diameter to a couple of percentages maintains the computer acceptance. Some tire shops will not put on tires that are 4 percent or more in a change from stock.

So for me I would consider 18" rims with similar sized stock tires in "E" rated for added weigh carrying capacity and a tougher sidewall for airing down.

[flyoversea]

Thank you for your advice! There seems to be 17” option too. I will definitely consider 18” rim!

[pvstoy]

If there was a 17" rim option for your truck then it would give you more side wall rubber. But look at tires as to what dimensions are available for both rim sizes for the brand you want. Look for common popular brand sizes that you can find in small town USA if need replacement.

[flyoversea]

If there was a 17" rim option for your truck then it would give you more side wall rubber. But look at tires as to what dimensions are available for both rim sizes for the brand you want. Look for common popular brand sizes that you can find in small town USA if need replacement.

[flyoversea]

Good point on popular tires, we never know when we would need one! Thanks!

[UmkaAndHawk]

I upgraded my 20" stock wheels to 17" with e-rated tires, and I am happy with the change on a 3rd gen Tundra. We air down occasionally, but no lower than 20 (well, honestly no lower than 25, but the shop said 20 could work) PSI because of the extra haul weight, even with the 17s on there.

[flyoversea]

I upgraded my 20" stock wheels to 17" with e-rated tires, and I am happy with the change on a 3rd gen Tundra. We air down occasionally, but no lower than 20 (well, honestly no lower than 25, but the shop said 20 could work) PSI because of the extra haul weight, even with the 17s on there.

Thank you, I am definitely going down that path as well.